Charles wentz fowler



(No Model.)

0. W. FOWLER.

CUTTER HEAD FOR VARIETY MOLDING MACHINES.

No. 559,695. Patented May 5,1896.

F/G.Z. FIG].

UNITED STATES ONE-HALF TO VILLIAM \V.

VARNEY, OF SAME PLACE.

CUTTER-HEAD FOR VARIETY MOLDlNG-MACHINES.

$PECIFICATION forming part of Letters Patent No. 559,695, dated May 5, 1896.

Application filed January 9, 1896. Serial No. 574,809. (No modelo To all whom may concern:

Be it known that 1, CHARLES WENTZ FOW- LER, a citizen of the United States, residing at Baltimore city, in the State of Maryland, have invented certain new and useful Improvements in Gutter-Heads for Variety Moldinglachincs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to that class of machines known as variety molding machines, and more especially to that part of the same known as the cutting mechanism or spindle, and in substance consists of an automatic adjustable collar for the same, and has for its object the adjustment and securing of cutters that may vary slightly in size, and also to compensate for the slight inequalities sometimes found upon setting up the nut of the spindle, causing the same to become sprung,and consequently to run with a wabble or out of true; and to this end my invention consists in the novel construction, arrangement, and combination of parts hereinafter fully described, and afterward definitely pointed out in the claims, due reference bein g had to the accompanying drawings, forn1- ing a part of this specification, wherein- Figure 1 shows an elevation or side view of the cutting mechanism of a variety moldingmachine and which shows my invention as applied to the same. Fig. 2 shows asectional view taken in elevation at right angles to that shown in Fig. 1.

Referring to the drawings, A is the power shaft or spindle of a variety molding-machine, usually ina vertical position, extending some-' what above a horizontal table capable of adjustment up and down. Said power-shaf t has a rotary motion on its axis. B is a shoulder on said shaft for the purpose of limiting the longitudinal movement of collars placed thereon.

O is a close-fitting collar on shaft A.

a is one part of the adjustable collar D, and b is the other part of the said collar. It is this collar D concerning which my invention more particularly relates.

E E are iiilingcollars, which may be either placed above or below the tool-collars C and D, their size and number depending upon the width of tools used. F is the securing-nut on the end of shaft A, upon which it is threaded. By means of this nut a compression is exerted upon all of the collars and tools between this nut F and she u lder B.

G is a cutting-tool. If is either a counter cutting-tool or a plain blank-filling between collars O and D. G and H are approximately the same size and shape in cross-section. It is the inequalities which often occur between G and H that is one of the objects of my invention to compensate for. In the practice of the present day without a compensating collar, if there is a slight difference between G and H in cross-section height, upon setting up of nut F, one or the other of G or H whichever is the highest becomes secure on the one side before the other. Contiu uin g the setting up of nut F until the other becomes secure, the inequality of the two has been overcome at the expense of springing the shaft or spindle, which will be found to be out of true when started.

Referrin g particularly to the compensating collar D, (I. is one part of the said collar. 1) is its counterpart or second part. a and b fit together by means of a spherical bearing. Z) fits the shaft A closely. at is so shaped that it may change its angle with shaft A if necessity requires. a and Z) form a solid or immovable union when nut F is set up.

a and cl are grooves in collar a for the purpose of more securelyholding the cutting-tool when used adjacent thereto.

e and f are grooves in collar (1 for more socurely holding the cutters in the same. It is found in practice that at times a slight variation is found in the thickness of the washers on their diametrically opposite sides caused either by dirt or corrosion or the like, in which case, without an adjustable collar, upon set- 9 ting up the nut F the spindle will be found to be sprung. It is also sometimes the case when an extender is used. In either case the use of my improved collar will. overcome the difliculty.

Having described my invention, what I claim, and Wish to secure by Letters Patent, 1s-

1. In a rotating cutter, the combination of a cutting-tool held in place between two collars, a power-shaft, a shoulder on said shaft to limit the longitudinal movement of collars placed thereon, a longitudinally-sliding equalizing device, a collar operated by said equalizing device, and a nut threaded on said power-shaft all substantially as described.

2. In aVarietymolding-machine, a cutting mechanism consisting of a collar 0 on a powershaft with a groove in said collar for holding a cutting-tool, a collar (4 with a hole through it of snlficient size and shape to allow it to CHARLES WENTZ FOWLER,

Witnesses:

Gno. lVICCAFFRAY, WM. \V. V ARNEY. 

